EP1678897A2 - Adaptateur reseaux universel integre - Google Patents

Adaptateur reseaux universel integre

Info

Publication number
EP1678897A2
EP1678897A2 EP04788944A EP04788944A EP1678897A2 EP 1678897 A2 EP1678897 A2 EP 1678897A2 EP 04788944 A EP04788944 A EP 04788944A EP 04788944 A EP04788944 A EP 04788944A EP 1678897 A2 EP1678897 A2 EP 1678897A2
Authority
EP
European Patent Office
Prior art keywords
ina
media
network
communications
phy
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP04788944A
Other languages
German (de)
English (en)
Inventor
Oleg Logvinov
Brion Ebert
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Arkados Inc
Original Assignee
Arkados Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Arkados Inc filed Critical Arkados Inc
Publication of EP1678897A2 publication Critical patent/EP1678897A2/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/2803—Home automation networks
    • H04L12/2838—Distribution of signals within a home automation network, e.g. involving splitting/multiplexing signals to/from different paths
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M11/00—Telephonic communication systems specially adapted for combination with other electrical systems
    • H04M11/06—Simultaneous speech and data transmission, e.g. telegraphic transmission over the same conductors
    • H04M11/062—Simultaneous speech and data transmission, e.g. telegraphic transmission over the same conductors using different frequency bands for speech and other data
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/2803—Home automation networks
    • H04L2012/284—Home automation networks characterised by the type of medium used
    • H04L2012/2843—Mains power line
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/2803—Home automation networks
    • H04L2012/284—Home automation networks characterised by the type of medium used
    • H04L2012/2845—Telephone line

Definitions

  • the present invention relates generally to data transmission over local area communications networks and, more particularly, to a network interface for interfacing with various communications media types constituting respective local area communications networks that include a power line network and a telephone line network.
  • a common power transmission network can be viewed as having three (3) main segments.
  • a distribution access network of medium voltage power lines configured in a loop and several miles in length, connects a standard power substation to an area of homes and businesses.
  • step down transformers provide a series of 1 10 - 240 V low voltage access lines, depending on the country, to a small number of homes and/or businesses.
  • a meter or meters is typically present for each electricity customer served by that line.
  • OFDM Orthogonal Frequency Division Multiplexing
  • an integrated communications network adapter provides that a communications network interface can be established to at least one of a plurality of communications media types, where the communications media include at least a power line communications (“PLC”) network and a telephone line network.
  • PLC power line communications
  • the integrated network adapter can include reconfigurable instantiations of major functional blocks of, preferably, an OFDM based communications system, such as Physical Layer interface ("PHY”) and Media Access Control (“MAC”) functionalities, and separate interface couplers for coupling to respective plurality of the communications media types.
  • each of the functional blocks can include a plurality of instantiations to provide that an interface can be established to each of the available communications media types, such that information and payload transfer can be performed using the networks respectively corresponding to the media types.
  • the PHY and MAC functionalities, along with the coupling interface, of the network adapter are preconfigured, using hardware such as a jumper or switch, to provide that an interface can be established to a selected one of the plurality of the communications media.
  • the MAC functionality is adapted to control which of the plurality of the communications media an interface is established upon initialization of the network adapter for operation. Control of the network interface established to a particular communications media type can be achieved by loading software or manipulating hardware, such as an electronically controllable relay, or other electronic switching hardware.
  • each of the PHY and MAC functionalities of the network adapter can dynamically control, on a transmission-by-transmission basis, to which of the communications media an interface is established.
  • FIG. 1 is a block diagram of an integrated network adapter adapted to accommodate pre-configuration in accordance with the present invention.
  • FIG. 1 is a block diagram of an integrated network adapter adapted to accommodate pre-configuration in accordance with the present invention.
  • FIG. 2 is a block diagram of an integrated network adapter adapted to accommodate run-time configuration in accordance with the present invention.
  • FIG. 3 is a block diagram of an integrated network adapter adapted to accommodate dynamic configuration in accordance with the present invention.
  • FIG. 4 is a block diagram of an integrated network adapter adapted to accommodate simultaneous interfacing with a plurality of communications media types in accordance with the present invention.
  • FIG. 1 is a preferred embodiment of an OFDM based integrated network adapter ("INA") 10 operable to provide an interface with a plurality of network media types including at least power line and phone line media types in accordance with the present invention.
  • INA OFDM based integrated network adapter
  • the power line network can be OFDM based, such as in HomePlug 1.0., and can include (1 ) a common local power line network in a home, business or other environment, and (2) a common local phone line network in a home, business or other environment. Both of these networks can be used to support communication between electronic appliances coupled to these lines, as well as • communication between a power line network and a phone line or other type of wired or wireless network. It is to be understood that other physical and wireless networks that may be present or available in a home or business also can constitute the network media types for interfacing with the INA of the present invention.
  • the INA 10 exploits the highly programmable, flexible OFDM based communications system, which is typically used in power line and a phone line networks, by including many of the same internal system hardware and software functional modules utilized in the communication media types for which the establishment of a network interface is desired.
  • the inventive INA 10 achieves significant cost of scale reductions for a programmable or ASIC based implementation, and the functionality and capability of a the INA is also increased.
  • the INA 10 includes a same Physical Layer Interface (“PHY”) module 14 and Media Access Control (“MAC”) module 15 as conventionally used for establishing an interface with a power line network and a phone line media.
  • PHY Physical Layer Interface
  • MAC Media Access Control
  • the INA 10 further includes a power line coupler 12 for coupling to a conventional power outlet 16 and a phone line coupler 3 for coupling to a conventional phone line outlet 18.
  • the INA 10 also includes an interface circuit 13 that can establish a communications connection to both a power line network and a phone line network.
  • the interface circuit 13 includes a pre-configuration selection capability in the form of a jumper or switch that allows for selection of either the power line or phone line media network for interfacing with the INA 10.
  • the MAC module 15 and PHY module 14 of the INA 10, respectively, include functionalities and technologies well known in the art for an OFDM based transceiver.
  • the INA 10 establishes the physical connection and electronic signal link to a power line or phone line network and a data input/output ("I/O") device, such as a computer (not shown), as well known in the art, and furthermore selectively controls the transmission of data on the power line or phone line network.
  • I/O data input/output
  • the INA 10 performs OFDM signal processing using techniques well known in the prior art, and includes the functionality to modify the signal processing operations, as suitable, based on the physical medium used for operation. See, for example, U.S. Patent Application Serial Nos.
  • the MAC and PHY modules 15 and 14 of the INA 10 may consist of a software module, a hardware module or a combined hardware/software module.
  • the MAC and PHY modules 15 and 14 suitably may contain a memory storage area, such as RAM, for storage of data and instructions for performing processing operations in accordance with the present invention.
  • instructions for performing processing operations can be stored in hardware in one or more of the modules 14 and 15.
  • FIG. 2 is a preferred embodiment of an OFDM based INA 20 including selection circuitry that provides for run-time configuration and operation on a run-time selected media type.
  • the INA 20 incorporates all the functionalities of the INA 10, described above with reference to FIG. 1 , and further includes run-time selection circuitry in a configuration circuit 23.
  • the run-time selection circuitry which can be in the form of electronically controllable relay or like device, provides that the physical medium to be used for data transmission can be selected when the INA 20 starts operating. While the INA 20 is initialized for operation or booted up, the MAC module 25, which is coupled directly to the configuration circuit 23, transmits control signals to the circuit 23 to select a physical network for transmission of communications data signals.
  • the MAC module 25, which includes a combination of hardware circuitry and software configuration, based on for example a software load and run-time parameters, transmits control signals to set up the configuration circuit 23. Based on the control signals, the circuit 23 selects either the power line coupler 12 or the phone line coupler 11 for establishing a network interface.
  • the configuration circuit 23, for example, can constitute a relay device that connects the coupler 12 to the power line outlet 15 or the coupler 11 to telephone line outlet 18 to provide that the data signals are routed from the PHY module 14 to a power line network or telephone line network, respectively.
  • FIG. 3 is further preferred embodiment of an INA 30, which includes the functionalities of the INA 10 and INA 20 and furthermore operates to dynamically select the network medium to which a network interface is established, such that the physical medium used for a particular data communication transmission can be switched while the INA 30 is in operation.
  • each communications event that is scheduled to be completed by a computer or other device (not shown) connected to the INA 30 can be performed using either the power line or the phone line network, where the network medium selected as the network interface occurs while the INA 30 is operating.
  • a MAC module 35 and a PHY module 34 in the INA 30 both include control signal lines that are coupled to a configuration circuit 33.
  • Each of the MAC module 35 and the PHY module 34 can transmit control signals to the configuration circuit 33 to select the network over which data transmission is to occur.
  • the dynamic selection of a network configuration performed by the MAC module 35 or the PHY module 34 is based on information available on the networks to which a network interface can be established.
  • the information for dynamic selection can include network parameters such as connection status, signal strength, presence of traffic, noise levels, historical and real-time error rates, congestion indications and other like data.
  • the MAC and PHY modules utilize such network parameters, preferably in conjunction with Quality of Service requirements associated with the data to be transmitted to determine the optimal transmission path for the aforementioned data.
  • the MAC and PHY modules in the INA 30 evaluate other data specific requirements, such as those associated with streaming media or other applications, as part of the process of selecting the network for which an interface will be established.
  • a single universal INA 40 as shown in FIG.
  • the INA 40 includes a PHY module 44 and a MAC module 45.
  • the PHY module 44 includes a plurality of instantiations of PHY related functionality, where one instantiation is included for each communications medium to which a network interface can be established using a coupler of the INA 40.
  • the MAC module 45 includes a plurality of instantiations of MAC related functionality, where one instantiation is included for each communications medium to which a network interface can be established using a coupler of the INA 40.
  • the INA 40 further includes a shared control interface 60 in the PHY module 44 coupled to each of the PHY instantiations.
  • the PHY module 44 includes connections from the PHY instantiations to the corresponding couplers.
  • the PHY instantiation in the module 44 associated with communications on a power line network is connected to the power line coupler 12.
  • the MAC module 45 also includes MAC instantiations for connection to corresponding separate data interfaces, such as power line data interface 50 or a phone line data interface 54.
  • the shared control interface 60 in the MAC module 45 is for connection to a shared control interface line 52, which connects to a computer or other communication control device (not shown).
  • the INA 40 Based on the plurality of MAC and PHY instantiations in the INA 40, the INA 40 provides that more than one network medium can be simultaneously used to accomplish data communication.
  • the INA 40 can be used in a communications system to provide that each packet of data can be routed to one or more available network mediums or multiple data packets can be transmitted over each of the available networks simultaneously.
  • the components in the PHY and MAC modules of the INA 40 blocks can be shared during use to achieve high efficiency communications.
  • the INA 40 can include an FFT block of an OFDM- based system as a shared resource for all of the available media or medium types.
  • the functionalities and capabilities of the INA 30 and the INA 40 can be utilized in combination in a communications system.
  • the combined functionalities of the INA 30 and the INA 40 can be used in a communications system to dynamically select a network path (i) by associating the source and destination address with a best route path using historical and realtime information related to channel conditions, (ii) based on the QoS parameters of a data packet, and (iii) based on information related to the channel status.
  • the INA 40 can select a network path using methods of discovering the best path through the network based on the simultaneous broadcast over all available media interfaces, or over all available and connected media types.
  • a communications system includes a plurality of INAs in accordance with the present invention configured in connection with all available media types to form one logical network.
  • the individual INAs in the logical network provide a means for bridging and routing among multiple media types and the bridging and routing can be accomplished from one media type to another.
  • the capability of a legacy network in the logical network can be expanded by bridging the legacy network to other networks in the logical network using the respective INA, and utilizing the advanced capabilities of the other networks of the logical network to add to the functionalities of the legacy network.
  • the INA of the present invention utilizes other cost saving implementation methods and additional packet routing functionality features, such as described for example in United States Patent Nos. 6,360,278 and 5,758,070, incorporated as references herein.
  • the inventive INA can select a network path based on routing functionality and using pattern recognition and Ethernet header lookup to determine the appropriate QoS requirements and the most suitable media and transmission path.
  • the INA of the present invention can be suitably constructed for selecting a network path among a plurality of communications media, such as a coaxial cable network, in addition to power line and telephone line networks as illustrated in the drawings FIGs. 1-4.
  • the INA of the present invention is for coupling to communications media in addition to power line and telephone line media
  • the INA preferably includes an automatic media detection functionality, for example within the PHY module, that detects the type of physical network medium characteristics.
  • the PHY module determines whether a communications network is 10Base-T based (data cable) or 10Base 2 or 5 based (coaxial cable), such as described in United States Patent No. 5,469,437, incorporated as a reference herein.
  • the inventive INA performs automatic detection for establishing a network interface based on configuration frames received from a medium.
  • the INA of the present invention is implemented wherein at least the PHY and MAC functions are implemented as a semiconductor component, or as a System-on-Chip (SoC).
  • SoC System-on-Chip
  • the inventive INA is implemented where at least the PHY, MAC, analog front end and at least some of the circuitry of the couplers are implemented in a System-in-Package design.
  • the inventive INA is implemented as an SoC and contains a CPU and other relevant media type support through interfaces such as Ethernet, IEEE1394, USB, etc.
  • the implementation of the inventive INA is constructed so that the INA can be powered through a power line network or other network medium to which it is attached.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Automation & Control Theory (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Small-Scale Networks (AREA)
  • Telephonic Communication Services (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)

Abstract

La présente invention concerne un adaptateur réseaux intégré utilisable pour établir une interface réseau avec une pluralité de types de supports, y compris au moins l'électricité et le téléphone, sur la base d'une préconfiguration à l'initialisation, mais aussi en mode dynamique pendant le fonctionnement. L'adaptateur permet en outre l'établissement simultané ou séparé d'interfaces avec une pluralité de types de moyens multimédias, en faisant en sorte qu'un événement de communications puisse se dérouler simultanément ou séparément sur une pluralité de types de moyens multimédias.
EP04788944A 2003-09-23 2004-09-23 Adaptateur reseaux universel integre Withdrawn EP1678897A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US50526103P 2003-09-23 2003-09-23
PCT/US2004/031227 WO2005032158A2 (fr) 2003-09-23 2004-09-23 Adaptateur reseaux universel integre

Publications (1)

Publication Number Publication Date
EP1678897A2 true EP1678897A2 (fr) 2006-07-12

Family

ID=34393000

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04788944A Withdrawn EP1678897A2 (fr) 2003-09-23 2004-09-23 Adaptateur reseaux universel integre

Country Status (3)

Country Link
US (2) US7440443B2 (fr)
EP (1) EP1678897A2 (fr)
WO (1) WO2005032158A2 (fr)

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Also Published As

Publication number Publication date
US7440443B2 (en) 2008-10-21
WO2005032158A3 (fr) 2006-03-30
US8050287B2 (en) 2011-11-01
US20090022175A1 (en) 2009-01-22
WO2005032158A2 (fr) 2005-04-07
US20070177623A1 (en) 2007-08-02

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